Interesting data point

[Neustradamus]

Originally: ckdo#15

@systemcrash commented Mar 17, 2021 •

Mac (also running the local copy of receiver):

'osBuildVersion': '19H524',
'osName': 'Mac OS X',
'osVersion': '10.15.7',

iOS:

'osBuildVersion': '18D61',
'osName': 'iPhone OS',
'osVersion': '14.4.1',
'senderSupportsRelay': True,
'sourceVersion': '535.3',

Summary: perhaps macOS requires a different feature bitmask?

When the first device connecting after startup is my mac I get all kinds of weird hangups and even:

{'streams': [{'audioFormat': 262144,
'audioMode': 'default',
'controlPort': 63126,
'ct': 2,
'isMedia': True,
'latencyMax': 88200,
'latencyMin': 11025,
'spf': 352,
'streamConnectionID': 8502940700034419006,
'supportsDynamicStreamID': True,
'type': 96}]}
Sending CONTROL/DATA:

Exception happened during processing of request from ('192.168.19.118', 58615)
Traceback (most recent call last):
File "/Applications/Xcode.app/Contents/Developer/Library/Frameworks/Python3.framework/Versions/3.8/lib/python3.8/socketserver.py", line 316, in _handle_request_noblock
self.process_request(request, client_address)
File "/Applications/Xcode.app/Contents/Developer/Library/Frameworks/Python3.framework/Versions/3.8/lib/python3.8/socketserver.py", line 347, in process_request
self.finish_request(request, client_address)
File "/Applications/Xcode.app/Contents/Developer/Library/Frameworks/Python3.framework/Versions/3.8/lib/python3.8/socketserver.py", line 360, in finish_request
self.RequestHandlerClass(request, client_address, self)
File "/Applications/Xcode.app/Contents/Developer/Library/Frameworks/Python3.framework/Versions/3.8/lib/python3.8/socketserver.py", line 720, in init
self.handle()
File "/Applications/Xcode.app/Contents/Developer/Library/Frameworks/Python3.framework/Versions/3.8/lib/python3.8/http/server.py", line 429, in handle
self.handle_one_request()
File "/Applications/Xcode.app/Contents/Developer/Library/Frameworks/Python3.framework/Versions/3.8/lib/python3.8/http/server.py", line 415, in handle_one_request
method()
File "ap2-receiver.py", line 294, in do_SETUP
stream = Stream(plist["streams"][0])
File "/Users/paul/git/airplay2-receiver/ap2/connections/stream.py", line 14, in init
self.session_key = stream["shk"]
KeyError: 'shk'

Sometimes it makes it all the way to

Now plaing DAAP info. (need a daap parser here)
Content-Length: 128
Content-Type: application/x-apple-binary-plist
CSeq: 14
DACP-ID: B845E79B45E42834
Active-Remote: 462096351
User-Agent: AirPlay/425.1

POST /command
{'params': {'mrSupportedCommandsFromSender': []},
'type': 'updateMRSupportedCommands'}

and just sits there. No error message from macos, but macos has no connection to airplay device either. Remains on speaker output.

Still occasionally gets stuck at the below, on successive connect attempts, even with PR #11

POST /pair-setup
00000000: 00 01 00 06 01 01 13 01 10 .........
----- Pair-Setup [1/2]
00000000: 07 E9 C1 08 F4 37 5A F2 1F 24 81 09 01 96 BB 63 .....7Z..$.....c
00000010: 01 B3 D4 EA 75 4D DC 27 41 CC E4 45 33 A8 8A 15 ....uM.'A..E3...
00000020: 46 ED B8 24 9E C5 4E 17 36 BE 5A 03 70 A1 A5 16 F..$..N.6.Z.p...
00000030: 1A E7 0B B7 67 29 44 23 FA 1E 73 14 BC E9 4D C5 ....g)D#..s...M.
----- ENCRYPTED CHANNEL -----

My iOS Music player will connect, often fine. Only after my iOS device has connected and disconnected, then my local mac has no problem connecting. Seems some object state left over from the previous connection helps. Could not get any supported audio media types to play from my mac, however. Logs just repeat this:

Content-Length: 1225
Content-Type: application/x-apple-binary-plist
CSeq: 153
DACP-ID: 714F31E66394D075
Active-Remote: 826932078
User-Agent: AirPlay/425.1

POST /command
{'params': {'mrSupportedCommandsFromSender': [{'kCommandInfoCommandKey': 0,
'kCommandInfoEnabledKey': True},
{'kCommandInfoCommandKey': 9,
'kCommandInfoEnabledKey': True},
{'kCommandInfoCommandKey': 1,
'kCommandInfoEnabledKey': True},
{'kCommandInfoCommandKey': 10,
'kCommandInfoEnabledKey': True},
{'kCommandInfoCommandKey': 19,
'kCommandInfoEnabledKey': True},
{'kCommandInfoCommandKey': 2,
'kCommandInfoEnabledKey': True},
{'kCommandInfoCommandKey': 11,
'kCommandInfoEnabledKey': True},
{'kCommandInfoCommandKey': 24,
'kCommandInfoEnabledKey': True},
{'kCommandInfoCommandKey': 3,
'kCommandInfoEnabledKey': True},
{'kCommandInfoCommandKey': 8,
'kCommandInfoEnabledKey': True}]},
'type': 'updateMRSupportedCommands'}
Content-Length: 1225
Content-Type: application/x-apple-binary-plist
CSeq: 154
DACP-ID: 714F31E66394D075
Active-Remote: 826932078
User-Agent: AirPlay/425.1

POST /command
{'params': {'mrSupportedCommandsFromSender': [{'kCommandInfoCommandKey': 0,
'kCommandInfoEnabledKey': True},
{'kCommandInfoCommandKey': 9,
'kCommandInfoEnabledKey': True},
{'kCommandInfoCommandKey': 1,
'kCommandInfoEnabledKey': True},
{'kCommandInfoCommandKey': 10,
'kCommandInfoEnabledKey': True},
{'kCommandInfoCommandKey': 19,
'kCommandInfoEnabledKey': True},
{'kCommandInfoCommandKey': 2,
'kCommandInfoEnabledKey': True},
{'kCommandInfoCommandKey': 11,
'kCommandInfoEnabledKey': True},
{'kCommandInfoCommandKey': 24,
'kCommandInfoEnabledKey': True},
{'kCommandInfoCommandKey': 3,
'kCommandInfoEnabledKey': True},
{'kCommandInfoCommandKey': 8,
'kCommandInfoEnabledKey': True}]},
'type': 'updateMRSupportedCommands'}

I do note that after iOS has connected (remote device) - when my local mac connects, I no longer see the loopback IP so much in the logs - only its 192.168 IP. I propose a fix for this, will make a PR.

Tried playing some 5.1 media via VLC, which played (tho output was silent), but nothing was in the logs. VLC hung on exit XD

iOS plays fine. If I team it up with e.g. Sonos speakers, there's a bit of delay/difference from this receiver, i.e. the receiver is ~100msec behind Sonos speakers. I guess synch leaves a little something to be desired.

Anyway, good work 👍

@PaulWieland commented Mar 17, 2021

If I team it up with e.g. Sonos speakers, there's a bit of delay/difference from this receiver, i.e. the receiver is ~100msec behind Sonos speakers. I guess synch leaves a little something to be desired.

Audio Sync isn't implemented at all, so that's totally to be expected.

@systemcrash commented Mar 17, 2021 •

See ckdo#16 - this PR cleans up lots of weird startup/connect behaviour (for me, at least).

@systemcrash commented Mar 17, 2021

See here for IPv6 problems.... prometheus/client_python#567

[systemcrash]

You are welcome to pick from my branch
https://github.com/systemcrash/airplay2-receiver/tree/set_interface_ip

I had to move the work from master to work on other things and my repo was getting messy. The branch works as is, although could be improved, as with anything. But better is the enemy of good, I suppose.

It seems to avoid some IPv6 problems/bugs, one must run Python v3.9 or 3.9.